<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>2-后置递增</title>
	</head>
	<body>
		<script type="text/javascript">
			//num++就相当于 num = num +1
			//特点：先返回原值，然后递增
			var num = 10;
			var x = num++ + 2;//12
			console.log("x::"+x);
			//num 11
			console.log("num::"+num);
			
			
			
		</script>
	</body>
</html>
